svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.plugin / org.gvsig.app / org.gvsig.app.mainplugin / src / main / java / org / gvsig / app / project / symboltables / ProjectSymbolTable.java @ 44203
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package org.gvsig.app.project.symboltables; |
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|
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import java.io.File; |
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import java.io.FileInputStream; |
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import java.util.HashMap; |
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import java.util.Iterator; |
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import java.util.List; |
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import java.util.Map; |
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import java.util.Properties; |
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import org.apache.commons.io.IOUtils; |
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import org.apache.commons.lang3.Range; |
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import org.cresques.cts.IProjection; |
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import org.gvsig.app.ApplicationLocator; |
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import org.gvsig.app.ApplicationManager; |
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import org.gvsig.app.project.Project; |
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import org.gvsig.app.project.ProjectManager; |
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import org.gvsig.app.project.documents.Document; |
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import org.gvsig.app.project.documents.view.ViewDocument; |
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import org.gvsig.app.project.documents.view.ViewManager; |
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import org.gvsig.expressionevaluator.Expression; |
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import org.gvsig.expressionevaluator.ExpressionEvaluatorLocator; |
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import org.gvsig.expressionevaluator.ExpressionEvaluatorManager; |
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import org.gvsig.expressionevaluator.ExpressionRuntimeException; |
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import org.gvsig.expressionevaluator.Interpreter; |
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import org.gvsig.expressionevaluator.spi.AbstractFunction; |
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import org.gvsig.expressionevaluator.spi.AbstractSymbolTable; |
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import org.gvsig.fmap.crs.CRSFactory; |
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import org.gvsig.fmap.dal.DALLocator; |
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import org.gvsig.fmap.dal.DataManager; |
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import org.gvsig.fmap.dal.HasDataStore; |
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import org.gvsig.fmap.dal.expressionevaluator.FeatureSymbolTable; |
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import org.gvsig.fmap.dal.feature.Feature; |
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import org.gvsig.fmap.dal.feature.FeatureQuery; |
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import org.gvsig.fmap.dal.feature.FeatureSet; |
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import org.gvsig.fmap.dal.feature.FeatureStore; |
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import org.gvsig.fmap.geom.Geometry; |
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import org.gvsig.fmap.geom.primitive.Point; |
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import org.gvsig.fmap.mapcontext.MapContext; |
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import org.gvsig.fmap.mapcontext.layers.FLayer; |
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import org.gvsig.fmap.mapcontext.layers.vectorial.FLyrVect; |
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import org.gvsig.fmap.mapcontrol.AreaAndPerimeterCalculator; |
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import org.gvsig.temporarystorage.TemporaryStorageGroup; |
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import org.gvsig.temporarystorage.TemporaryStorageLocator; |
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import org.gvsig.temporarystorage.TemporaryStorageManager; |
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import org.gvsig.tools.util.UnmodifiableBasicList; |
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|
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/**
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*
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* @author jjdelcerro
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*/
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@SuppressWarnings("UseSpecificCatch") |
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public class ProjectSymbolTable extends AbstractSymbolTable { |
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|
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public static final String AREA_NAME = "AREA"; |
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public static final String PERIMETER_NAME = "PERIMETER"; |
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public static final String STORE_NAME = "STORE"; |
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public static final String FETCH_FIRST_NAME = "FETCH_FIRST"; |
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public static final String FETCH_FIRST_SELECTED_NAME = "FETCH_FIRST_SELECTED"; |
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public static final String FETCH_NAME = "FETCH"; |
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|
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static final String NAME = "Project"; |
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|
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private static final String TABLE_DOCUMENT_TYPENAME = "project.document.table"; |
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|
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private abstract class CachedValue<T> { |
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|
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T value = null;
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long lastAccess = 0; |
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|
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protected abstract void reload(); |
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|
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public boolean isExpired() { |
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long now = System.currentTimeMillis(); |
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return now - lastAccess > 3000; |
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} |
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|
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public T get() {
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if (isExpired()) {
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reload(); |
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} |
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lastAccess = System.currentTimeMillis();
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return value;
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} |
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} |
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|
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private class ProjectValue extends CachedValue<Project> { |
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@Override
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protected void reload() { |
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value = ProjectManager.getInstance().getCurrentProject(); |
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} |
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|
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} |
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|
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private class CurrentViewValue extends CachedValue<ViewDocument> { |
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@Override
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protected void reload() { |
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ApplicationManager application = ApplicationLocator.getManager(); |
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ViewDocument viewdoc = (ViewDocument) application.getActiveDocument(ViewManager.TYPENAME); |
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value = viewdoc; |
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} |
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|
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} |
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|
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private class CurrentViewEnvelopeValue extends CachedValue<Geometry> { |
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|
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@Override
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protected void reload() { |
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ApplicationManager application = ApplicationLocator.getManager(); |
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ViewDocument viewdoc = (ViewDocument) application.getActiveDocument(ViewManager.TYPENAME); |
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if( viewdoc == null ) { |
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value = null;
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return;
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} |
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value = viewdoc.getMapContext().getViewPort().getEnvelope().getGeometry(); |
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} |
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|
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} |
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|
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private class PropertiesValue extends CachedValue<Map<File, Properties>> { |
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|
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@Override
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protected void reload() { |
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value = new HashMap<>(); |
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} |
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} |
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private class CurrentProjectFunction extends AbstractFunction { |
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public CurrentProjectFunction() {
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super(
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"Project",
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"project",
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Range.is(0),
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"Access to the current project loaded in gvSIG desktop.\n",
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"project()",
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null,
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"Project"
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); |
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} |
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@Override
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public Object call(Interpreter interpreter, Object[] args) throws Exception { |
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return currentProject.get();
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} |
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|
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} |
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private class StoreFunction extends AbstractFunction { |
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public StoreFunction() {
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super(
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"Project",
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STORE_NAME, |
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Range.is(2), // Range.between(1, 2), |
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"Return the data store associated with a layer.", // or a table.\n" + |
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// "If receive a single parameter, it will correspond to " +
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// "the name of a table-type document, and it will return " +
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// "your data store. If you receive two parameters, you expect " +
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// "to be the name of a view and a layer of it, returning the " +
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// "data store of the layer.",
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STORE_NAME+"({{view}}, layer)",
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new String[]{ |
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"view - String value with the name of a view",
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"layer - String value with the name of a layer in the indicated view"
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// "table - String value with the name of document table"
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}, |
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"DataStore"
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); |
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} |
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@Override
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public Object call(Interpreter interpreter, Object[] args) throws Exception { |
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Project project = currentProject.get(); |
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switch (args.length) {
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case 1: |
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String tableName = getStr(args, 0); |
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Document document = project.getDocument(tableName, TABLE_DOCUMENT_TYPENAME);
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if (document == null) { |
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return null; |
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} |
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if( document instanceof HasDataStore ) { |
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return ((HasDataStore) document).getDataStore();
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} |
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return null; |
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|
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case 2: |
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String viewName = getStr(args, 0); |
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String layerName = getStr(args, 1); |
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ViewDocument view = (ViewDocument) project.getDocument(viewName, ViewManager.TYPENAME); |
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if (view == null) { |
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return null; |
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} |
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FLayer layer = view.getLayer(layerName); |
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if( layer instanceof HasDataStore ) { |
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return ((HasDataStore)layer).getDataStore();
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} |
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return null; |
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} |
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return null; |
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} |
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|
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} |
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private class FetchFunction extends AbstractFunction { |
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public FetchFunction() {
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super(
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"Project",
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FETCH_NAME, |
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Range.between(2, 4), |
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"Access to the features of a table and retuen a list with the values.",
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FETCH_NAME+"({{value}}, store, where, order)",
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new String[]{ |
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"value - value to retrieve from the store, usually an expression in the columns of this are involved.",
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"store - data store from which values will be collected",
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"where - Optional. String value with a filter expression",
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"order - Optional. String value with the order. must be a string with the names of separate fields with commas"
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}, |
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"Object"
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); |
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} |
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@Override
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public Object call(Interpreter interpreter, Object[] args) throws Exception { |
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Object value;
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String where = null; |
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String order = null; |
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String expression_s = getStr(args, 0); |
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FeatureStore store = (FeatureStore) getObject(args, 1);
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switch (args.length) {
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case 3: |
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where = getStr(args, 2);
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break;
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case 4: |
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where = getStr(args, 2);
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order = getStr(args, 3);
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break;
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} |
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try {
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List<Feature> features;
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if (where == null && order == null) { |
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features = store.getFeatures(); |
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} else {
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FeatureQuery query = store.createFeatureQuery(); |
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if (where != null) { |
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query.addFilter(where); |
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} |
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if (order != null) { |
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query.getOrder().add(order); |
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} |
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query.retrievesAllAttributes(); |
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features = store.getFeatures(query); |
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} |
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UnmodifiableBasicList<Object> list = new ListOfFeaturesWrapper( |
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features, |
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interpreter.getSymbolTable(), |
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expression_s |
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); |
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return list;
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} catch (Exception ex) { |
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throw new ExpressionRuntimeException("Problems calling '"+FETCH_NAME+"' function", ex); |
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} |
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} |
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} |
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|
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private class FetchFirstFunction extends AbstractFunction { |
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|
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public FetchFirstFunction() {
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super(
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"Project",
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FETCH_FIRST_NAME, |
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Range.between(2, 4), |
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"Access to the first feature of the layer, and "
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+ "return the value of the attribute.",
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FETCH_FIRST_NAME+"({{value}}, store, where, order)",
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new String[]{ |
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"value - value to retrieve from the store, usually an expression in the columns of this are involved.",
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"store - data store from which values will be collected",
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"where - Optional. String value with a filter expression",
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"order - Optional. String value with the order. must be a string with the names of separate fields with commas"
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}, |
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"Object"
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); |
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} |
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|
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@Override
|
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public Object call(Interpreter interpreter, Object[] args) throws Exception { |
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Object value;
|
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String where = null; |
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String order = null; |
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String expression_s = getStr(args, 0); |
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FeatureStore store = (FeatureStore) getObject(args, 1);
|
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switch (args.length) {
|
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case 3: |
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where = getStr(args, 2);
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break;
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case 4: |
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where = getStr(args, 2);
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order = getStr(args, 3);
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break;
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} |
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try {
|
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FeatureSet set; |
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if (where == null && order == null) { |
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set = store.getFeatureSet(); |
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} else {
|
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FeatureQuery query = store.createFeatureQuery(); |
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if (where != null) { |
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query.addFilter(where); |
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} |
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if (order != null) { |
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query.getOrder().add(order); |
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} |
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query.retrievesAllAttributes(); |
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set = store.getFeatureSet(query); |
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} |
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Feature feature = set.first(); |
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if (feature == null) { |
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return null; |
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} |
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DataManager dataManager = DALLocator.getDataManager(); |
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FeatureSymbolTable symbolTable = dataManager.createFeatureSymbolTable(); |
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symbolTable.setFeature(feature); |
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|
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ExpressionEvaluatorManager expManager = ExpressionEvaluatorLocator.getManager(); |
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Expression expression = expManager.createExpression();
|
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expression.setPhrase(expression_s); |
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value = expression.execute(symbolTable.createParent()); |
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|
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return value;
|
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} catch (Exception ex) { |
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throw new ExpressionRuntimeException("Problems calling '"+FETCH_FIRST_NAME+"' function", ex); |
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} |
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} |
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} |
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|
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private class FetchFirstSelectedFunction extends AbstractFunction { |
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|
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public FetchFirstSelectedFunction() {
|
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super("Project", |
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FETCH_FIRST_SELECTED_NAME, |
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Range.is(2),
|
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"Access to the first feature of the selection.",
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FETCH_FIRST_SELECTED_NAME+"({{value}}, store)",
|
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new String[]{ |
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"value - value to retrieve from the store, usually an expression in the columns of this are involved.",
|
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"store - data store from which values will be collected"
|
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}, |
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"Object"
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); |
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} |
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|
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@Override
|
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public Object call(Interpreter interpreter, Object[] args) throws Exception { |
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String expression_s = getStr(args, 0); |
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FeatureStore store = (FeatureStore) getObject(args, 1);
|
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try {
|
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FeatureSet set = store.getFeatureSelection(); |
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Feature feature = set.first(); |
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if (feature == null) { |
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return null; |
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} |
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DataManager dataManager = DALLocator.getDataManager(); |
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FeatureSymbolTable symbolTable = dataManager.createFeatureSymbolTable(); |
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symbolTable.setFeature(feature); |
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|
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ExpressionEvaluatorManager expManager = ExpressionEvaluatorLocator.getManager(); |
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Expression expression = expManager.createExpression();
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expression.setPhrase(expression_s); |
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Object value = expression.execute(symbolTable.createParent());
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|
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return value;
|
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} catch (Exception ex) { |
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throw new ExpressionRuntimeException("Problems calling '"+FETCH_FIRST_SELECTED_NAME+"' function", ex); |
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} |
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} |
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} |
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|
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private class ViewFunction extends AbstractFunction { |
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|
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public ViewFunction() {
|
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super(
|
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"Project",
|
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"view",
|
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Range.is(1),
|
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"Access to the indicated view",
|
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"view({{viewName}})",
|
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new String[]{ |
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"view - String value with the name of a view"
|
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}, |
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"DocumentView"
|
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); |
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} |
396 |
|
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@Override
|
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public Object call(Interpreter interpreter, Object[] args) throws Exception { |
399 |
String viewName = getStr(args, 0); |
400 |
Project project = currentProject.get(); |
401 |
ViewDocument view = (ViewDocument) project.getDocument(viewName, ViewManager.TYPENAME); |
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return view;
|
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} |
404 |
|
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} |
406 |
|
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private class ViewBBoxFunction extends AbstractFunction { |
408 |
|
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public ViewBBoxFunction() {
|
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super(
|
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"Project",
|
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"viewbbox",
|
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Range.is(0),
|
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"Return the BBox of the active view.",
|
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"viewbbox()",
|
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null,
|
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"Geometry"
|
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); |
419 |
} |
420 |
|
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@Override
|
422 |
public Object call(Interpreter interpreter, Object[] args) throws Exception { |
423 |
return currentViewEnvelope.get();
|
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} |
425 |
|
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} |
427 |
|
428 |
|
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private class SavedPointFunction extends AbstractFunction { |
430 |
|
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public SavedPointFunction() {
|
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super(
|
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"Project",
|
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"savedpoint",
|
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Range.is(1),
|
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"Return the value of the saved point with the name indicated.\n"
|
437 |
+ "If the named point do not exists return null.",
|
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"savedpoint({{name}})",
|
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new String[]{ |
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"name - String value with the name of the point"
|
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}, |
442 |
"Geometry"
|
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); |
444 |
} |
445 |
|
446 |
@Override
|
447 |
public Object call(Interpreter interpreter, Object[] args) throws Exception { |
448 |
TemporaryStorageManager manager = TemporaryStorageLocator.getTemporaryStorageManager(); |
449 |
TemporaryStorageGroup storage = manager.create("Points",Point.class); |
450 |
Geometry value = (Geometry) storage.get(getStr(args, 0));
|
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return value;
|
452 |
} |
453 |
|
454 |
} |
455 |
|
456 |
private class AreaFunction extends AbstractFunction { |
457 |
|
458 |
public AreaFunction() {
|
459 |
super(
|
460 |
"Project",
|
461 |
AREA_NAME, |
462 |
Range.between(2,3), |
463 |
"Calculate the area of the geometry in the indicated units",
|
464 |
AREA_NAME+"({{geometry}}, 'm?')",
|
465 |
new String[]{ |
466 |
"geometry - Geometry",
|
467 |
"Projection - Optional. Projection of the geometry or a string with the projection name",
|
468 |
"units - String value with the name the units to use"
|
469 |
}, |
470 |
"Double"
|
471 |
); |
472 |
} |
473 |
|
474 |
@Override
|
475 |
public Object call(Interpreter interpreter, Object[] args) throws Exception { |
476 |
int units = 0; |
477 |
IProjection proj = null;
|
478 |
Geometry geom = getGeom(args, 0);
|
479 |
switch( args.length ) {
|
480 |
case 2: |
481 |
units = getUnits(args, 1);
|
482 |
break;
|
483 |
case 3: |
484 |
proj = getProjection(args, 1);
|
485 |
units = getUnits(args, 2);
|
486 |
break;
|
487 |
} |
488 |
if (proj == null) { |
489 |
proj = geom.getProjection(); |
490 |
} |
491 |
AreaAndPerimeterCalculator calculator = new AreaAndPerimeterCalculator();
|
492 |
double area = calculator.area(geom, proj, units);
|
493 |
return area;
|
494 |
} |
495 |
} |
496 |
|
497 |
private class PerimeterFunction extends AbstractFunction { |
498 |
|
499 |
public PerimeterFunction() {
|
500 |
super(
|
501 |
"Project",
|
502 |
PERIMETER_NAME, |
503 |
Range.between(2,3), |
504 |
"Calculate the perimeter of the geometry in the indicated units",
|
505 |
PERIMETER_NAME+"({{geometry}}, 'm')",
|
506 |
new String[]{ |
507 |
"geometry - Geometry",
|
508 |
"Projection - Optional. Projection of the geometry or a string with the projection name",
|
509 |
"units - String value with the name the units to use"
|
510 |
}, |
511 |
"Double"
|
512 |
); |
513 |
} |
514 |
|
515 |
@Override
|
516 |
public Object call(Interpreter interpreter, Object[] args) throws Exception { |
517 |
int units = 0; |
518 |
IProjection proj = null;
|
519 |
Geometry geom = getGeom(args, 0);
|
520 |
switch( args.length ) {
|
521 |
case 2: |
522 |
units = getUnits(args, 1);
|
523 |
break;
|
524 |
case 3: |
525 |
proj = getProjection(args, 1);
|
526 |
units = getUnits(args, 2);
|
527 |
break;
|
528 |
} |
529 |
if (proj == null) { |
530 |
proj = geom.getProjection(); |
531 |
} |
532 |
AreaAndPerimeterCalculator calculator = new AreaAndPerimeterCalculator();
|
533 |
double area = calculator.perimeter(geom, proj, units);
|
534 |
return area;
|
535 |
} |
536 |
} |
537 |
|
538 |
private class PropertyFunction extends AbstractFunction { |
539 |
|
540 |
public PropertyFunction() {
|
541 |
super(
|
542 |
"Project",
|
543 |
"property",
|
544 |
Range.between(2, 3), |
545 |
"Access to a property value in a properties file. If the"
|
546 |
+ "indicated filename is not absolute, access it relative"
|
547 |
+ "to the project.",
|
548 |
"property({{filename}}, name, defaultValue)",
|
549 |
new String[]{ |
550 |
"filename - String value with the name of the properties file",
|
551 |
"name - String value with the name of the property to retrieve from the file",
|
552 |
"defaultValue - Optional. Default value if can't access the file or the property",},
|
553 |
"String"
|
554 |
); |
555 |
} |
556 |
|
557 |
@Override
|
558 |
public Object call(Interpreter interpreter, Object[] args) throws Exception { |
559 |
String filename = getStr(args, 0); |
560 |
String name = getStr(args, 1); |
561 |
String defaultValue = null; |
562 |
if (args.length == 3) { |
563 |
defaultValue = getStr(args, 2);
|
564 |
} |
565 |
|
566 |
File file = new File(filename); |
567 |
if (!file.isAbsolute()) {
|
568 |
Project project = currentProject.get(); |
569 |
if (project.getFile() == null) { |
570 |
return defaultValue;
|
571 |
} |
572 |
file = new File(project.getFile().getParent(), filename); |
573 |
} |
574 |
Map<File, Properties> x = propertiesFiles.get(); |
575 |
Properties properties = x.get(file);
|
576 |
if (properties == null) { |
577 |
properties = new Properties(); |
578 |
FileInputStream in = null; |
579 |
try {
|
580 |
in = new FileInputStream(file); |
581 |
properties.load(in); |
582 |
} catch (Exception ex) { |
583 |
return defaultValue;
|
584 |
} finally {
|
585 |
IOUtils.closeQuietly(in); |
586 |
} |
587 |
x.put(file, properties); |
588 |
} |
589 |
String value = properties.getProperty(name, defaultValue);
|
590 |
return value;
|
591 |
} |
592 |
|
593 |
} |
594 |
|
595 |
ProjectValue currentProject = new ProjectValue();
|
596 |
CurrentViewValue currentView = new CurrentViewValue();
|
597 |
CurrentViewEnvelopeValue currentViewEnvelope = new CurrentViewEnvelopeValue();
|
598 |
PropertiesValue propertiesFiles = new PropertiesValue();
|
599 |
|
600 |
@SuppressWarnings("OverridableMethodCallInConstructor") |
601 |
public ProjectSymbolTable() {
|
602 |
super(NAME);
|
603 |
this.addFunction(new CurrentProjectFunction()); |
604 |
this.addFunction(new StoreFunction()); |
605 |
this.addFunction(new FetchFunction()); |
606 |
this.addFunction(new FetchFirstFunction()); |
607 |
this.addFunction(new FetchFirstSelectedFunction()); |
608 |
this.addFunction(new ViewFunction()); |
609 |
this.addFunction(new ViewBBoxFunction()); |
610 |
this.addFunction(new PropertyFunction()); |
611 |
this.addFunction(new AreaFunction()); |
612 |
this.addFunction(new PerimeterFunction()); |
613 |
this.addFunction(new SavedPointFunction()); |
614 |
} |
615 |
|
616 |
private MapContext getMapContext(Feature feature) {
|
617 |
FeatureStore store = feature.getStore(); |
618 |
Project project = ProjectManager.getInstance().getCurrentProject(); |
619 |
project.getDocuments(ViewManager.TYPENAME); |
620 |
for (Document document : project.getDocuments(ViewManager.TYPENAME)) { |
621 |
ViewDocument view = (ViewDocument) document; |
622 |
MapContext mapContext = view.getMapContext(); |
623 |
FLayer layer = getLayer(mapContext, store); |
624 |
if (layer != null) { |
625 |
return mapContext;
|
626 |
} |
627 |
} |
628 |
return null; |
629 |
} |
630 |
|
631 |
private FLayer getLayer(MapContext mapContext, FeatureStore store) {
|
632 |
Iterator<FLayer> it = mapContext.deepiterator();
|
633 |
while (it.hasNext()) {
|
634 |
FLayer layer = it.next(); |
635 |
if (layer instanceof FLyrVect) { |
636 |
FeatureStore layer_store = ((FLyrVect) layer).getFeatureStore(); |
637 |
if (layer_store == store) {
|
638 |
return layer;
|
639 |
} |
640 |
} |
641 |
} |
642 |
return null; |
643 |
} |
644 |
|
645 |
private IProjection getProjection(Object[] args, int i) { |
646 |
Object value = args[i];
|
647 |
if (value == null) { |
648 |
return null; |
649 |
} |
650 |
if (value instanceof IProjection) { |
651 |
return (IProjection) value;
|
652 |
} |
653 |
String code = value.toString();
|
654 |
return CRSFactory.getCRS(code);
|
655 |
} |
656 |
|
657 |
private int getUnits(Object[] args, int i) { |
658 |
Object value = args[i];
|
659 |
if (value == null) { |
660 |
throw new IllegalArgumentException("Illegal unit value 'null'"); |
661 |
} |
662 |
if (value instanceof Number) { |
663 |
return ((Number) value).intValue(); |
664 |
} |
665 |
String name = value.toString();
|
666 |
String[] names = MapContext.getAreaAbbr(); |
667 |
for (int j = 0; j < names.length; j++) { |
668 |
if (name.equalsIgnoreCase(names[j])) {
|
669 |
return j;
|
670 |
} |
671 |
} |
672 |
names = MapContext.getAreaNames(); |
673 |
for (int j = 0; j < names.length; j++) { |
674 |
if (name.equalsIgnoreCase(names[j])) {
|
675 |
return j;
|
676 |
} |
677 |
} |
678 |
throw new IllegalArgumentException("Illegal unit name '" + name + "'"); |
679 |
} |
680 |
|
681 |
} |